Construction technology of rain and pollution diversion covering film in landfill

Landfill impermeable film is generally 1.5mm- 2.0mm thick; Smooth surface geomembrane can be used for paving, and rough surface geomembrane must be used for slopes. The capping should also be impermeable with HDPE geomembrane with a new material thickness of 1.5mm.

Landfill impermeable film, also known as HDPE geomembrane, is a kind of waterproof barrier material with polyethylene primary resin as the basic raw material. The main composition is 97.5% high-density polyethylene, about 2.5% carbon black anti-aging agent UV absorber stabilizer and other auxiliary materials.

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In summary, how to choose the material and how to construct the material is a problem, and share with you: landfill leakage pollution environmental harm is very huge, the leachate generated by infiltration underground will pollute the groundwater, and the polluted groundwater will cause serious harm to the human body.

The treatment cost of leachate is very high, in order to avoid the increase of leachate due to rain, a layer of high-density polyethylene geomembrane needs to be laid on the surface of the garbage for rain and pollution diversion, so that the rain no longer enters the dump, but is discharged through the surrounding drainage outlet. The temporary covering of landfill rain and pollution diversion membrane generally uses 0.75mm geomembrane. The intermediate cover uses 1.0mm or 1.5mmHDPE geomembrane, and the final cover uses 2.0mmHDPE geomembrane.

Landfills use 1 to 2 mm thick high-density polyethylene geomembrane. The environment-friendly landfill of the treatment process has been widely promoted and used in the country.